电化学处理印染污水的优化研究
摘要：本文阐述了电化学作用下印染污水处理降低COD的具体操作方法和机理。实验采用不同的处理条件进行分析，从而选择最佳的处理条件，使废水处理效果达到较好的水平。同时，本文还将电化学法去除COD与通过加入Fe2SO4去除COD的方法进行对比，分析两种方法的可行性和效果，得出的具体结果如下：电流密度=2020mA/cm2，t=4h，r=150min/min。COD降解率为62.5%。污水颜色由墨黑色变为透明无色。而Fe2SO4在加入量为4.2g/50ml达到极值，其COD降解率为43.75%。污水颜色由墨黑色至微绿色。
关键词：电化学反应；印染污水；降解过程
目 录
中文摘要┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉ Ⅰ
英文摘要┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉ Ⅱ
目录┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉ III
1.绪论┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉ 1
1.1 课题研究背景及意义┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉ 1
1.2 工业污水处理方法概况┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉1
1.2.1 生物处理法┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉1
1.2.2 化学处理法┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉2
1.2.3 物理处理法┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉2
1.2.4 电化学处理法┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉2
1.3 电化学处理法机理┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉2
1.3.1 电化学方法分类┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉3
1.3.2 电化学过程机理┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉3
1.4 绪论小结 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉7
2．实验部分 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉ 8
2.1 材料 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉8
2.1.1 实验试剂┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉8
2.1.2 实验设备┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉8
2.2 实验方法┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉8
2.2.1 COD测定┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉8
2.2.2 电化学法污水处理┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉9
2.3 实际处理废水的动态设计┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉ 9
3．结果与讨论┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉ 10
3.1 电流密度对COD脱除率的影响┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉ 10
3.2 电解时间对COD影响┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉ 11
3.3 搅拌速率对COD的影响┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉ 13
3.4 对照实验——FeSO4沉降实验┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉ 13
4．总结与展望┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉14
致谢 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉15
参考文献 ┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉16
